1.Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul, 02841, Korea
2.Department of Physics, Korea University, Seoul, 02841, Korea
3.Department of Applied Mathematics, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, Netherlands
4.Achmea Holding BV, Handelsweg 2, 3707 NH, Zeist, Netherlands
Wonshik Choi (wonshik@korea.ac.kr)
纸质出版日期:2022-01-31,
网络出版日期:2022-01-14,
收稿日期:2021-07-26,
修回日期:2021-12-10,
录用日期:2021-12-26
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High-throughput volumetric adaptive optical imaging using compressed time-reversal matrix[J]. LSA, 2022,11(1):114-126.
Lee, H. et al. High-throughput volumetric adaptive optical imaging using compressed time-reversal matrix. Light: Science & Applications, 11, 114-126 (2022).
High-throughput volumetric adaptive optical imaging using compressed time-reversal matrix[J]. LSA, 2022,11(1):114-126. DOI: 10.1038/s41377-021-00705-4.
Lee, H. et al. High-throughput volumetric adaptive optical imaging using compressed time-reversal matrix. Light: Science & Applications, 11, 114-126 (2022). DOI: 10.1038/s41377-021-00705-4.
Deep-tissue optical imaging suffers from the reduction of resolving power due to tissue-induced optical aberrations and multiple scattering noise. Reflection matrix approaches recording the maps of backscattered waves for all the possible orthogonal input channels have provided formidable solutions for removing se
vere aberrations and recovering the ideal diffraction-limited spatial resolution without relying on fluorescence labeling and guide stars. However
measuring the full input–output response of the tissue specimen is time-consuming
making the real-time image acquisition difficult. Here
we present the use of a time-reversal matrix
instead of the reflection matrix
for fast high-resolution volumetric imaging of a mouse brain. The time-reversal matrix reduces two-way problem to one-way problem
which effectively relieves the requirement for the coverage of input channels. Using a newly developed aberration correction algorithm designed for the time-reversal matrix
we demonstrated the correction of complex aberrations using as small as 2% of the complete basis while maintaining the image reconstruction fidelity comparable to the fully sampled reflection matrix. Due to nearly 100-fold reduction in the matrix recording time
we could achieve real-time aberration-correction imaging for a field of view of 40 × 40 µm
2
(176 × 176 pixels) at a frame rate of 80 Hz. Furthermore
we demonstrated high-throughput volumetric adaptive optical imaging of a mouse brain by recording a volume of 128 × 128 × 125 µm
3
(568 × 568 × 125 voxels) in 3.58 s
correcting tissue aberrations at each and every 1 µm depth section
and visualizing myelinated axons with a lateral resolution of 0.45 µm and an axial resolution of 2 µm.
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